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  1. #include <stdio.h>
  2. #include <string.h>
  3. #include <math.h>
  4. #include <stdlib.h>
  5.  
  6. int main() {
  7.     int T,flag;
  8.     char s[100005];
  9.     long i,j;
  10.     scanf("%d",&T);
  11.     while(T--)
  12.         {
  13.         scanf("%s",s);
  14.         flag=0;
  15.         for(i=0,j=(strlen(s)-1);i<j;i++,j--)
  16.             {
  17.             if(s[i]!=s[j])
  18.                 {
  19.                 if(s[i]!=s[i+1])
  20.                     j=i;
  21.                 flag=1;
  22.                 break;
  23.             }
  24.         }
  25.         if(flag==1)
  26.             printf("%ld\n",j);
  27.         else
  28.             printf("-1\n");
  29.     }
  30.  
  31.  
  32.     return 0;
  33. }
  34.  
Success #stdin #stdout 0s 2032KB
comments (?)
stdin
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3
aaab
baa
aaa
stdout
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3
0
-1
https://ideone.com/vn75hA
Palindrome Index
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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